ROMAN GOLD RING WITH ROCK CRYSTAL CABOCHON Ca. AD 1 - 300. A gold ring with a flat-section hoop expanding into a rounded bezel set with a rock crystal cabochon. The stone is held within a plain recessed mount. Size: D:17.32mm / US: 7 / UK: N 1/2; Weight: 3g Provenance: From a private UK collection, M.A.; earlier purchased on the London art market before 2000.